The combustion of hydrogen-oxygen mixture is used to produce very high temperatures (≈2500oC) needed for certain types of welding operations. H2(g)+12O2(g)→H2O(g); △H=−230.9 kJQuantity of heat, (in kJ) evolved when a 200 g mixture containing equal parts of H2 and O2 by mass is burned, is

The combustion of hydrogen-oxygen mixture is used to produce very high

1.	The combustion of hydrogen-oxygen mixture is used to produce very high temperatures (≈2500oC) needed for certain types of welding operations. H2(g)+12O2(g)→H2O(g); △H=−230.9 kJQuantity of heat, (in kJ) evolved when a 200 g mixture containing equal parts of H2 and O2 by mass is burned, is
Answer» The combustion of hydrogen-oxygen mixture is used to produce very high temperatures $(\approx 2500^{o} C)$ needed for certain types of welding operations. $H_{2} (g) + \frac{1}{2} O_{2} (g) \to H_{2} O (g); △ H = - 230.9 k J$ Quantity of heat, (in kJ) evolved when a 200 g mixture containing equal parts of $H_{2}$ and $O_{2}$ by mass is burned, is